Home / 28,573,800.28-39,431,814.42-15,521,069.56

Finding the Fourth Proportional to 28,573,800.28, 39,431,814.42 and 15,521,069.56

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Solution

The fourth proportional to 28,573,800.28, 39,431,814.42 and 15,521,069.56 is: 21,419,059.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,573,800.28 : 39,431,814.42 = 15,521,069.56 : x
  2. Step 2: Convert to fraction form
    28,573,800.28/39,431,814.42 = 15,521,069.56/x
  3. Step 3: Cross multiply
    28,573,800.28x = 39,431,814.42 × 15,521,069.56
  4. Step 4: Simplify right side
    28,573,800.28x = 612,023,934,489,831.12
  5. Step 5: Solve for x
    x = 612,023,934,489,831.12/28,573,800.28
  6. Step 6: Final answer
    x = 21,419,059.72

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.